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Qualitative and quantitative analysis of accumulation and biodistribution of polystyrene nanoplastics in zebrafish (Danio rerio) via artificial freshwater
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Researchers developed MALDI-TOF mass spectrometry methods to accurately track polystyrene nanoplastic accumulation and biodistribution across zebrafish tissues after waterborne exposure, enabling precise quantitative analysis of nanoplastic uptake.
PSN-spiked water exposure medium facilitated the spread of PSN in zebrafish tissues. New developed methods of MALDI-TOF-MS enabled an accurate analysis of PSN features in an aquatic organism.
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Uptake, bioaccumulation, biodistribution and depuration of polystyrene nanoplastics in zebrafish (Danio rerio)
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Researchers used advanced mass spectrometry to track how polystyrene nanoplastics accumulate in and are cleared from zebrafish tissues over time. The nanoplastics concentrated most in the intestine, liver, and gills, with only partial clearance after the exposure ended. This study provides important data on how persistent nanoplastics can be in living organisms, which helps scientists better assess the long-term risks of plastic particle exposure.
Quantitative Tracking of Nanoplastic Uptake and Distributionin Zebrafish by Single-Particle Inductively Coupled Plasma Mass Spectrometry
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Researchers developed a framework using europium-doped polystyrene nanoplastics as tracers, combined with single-particle inductively coupled plasma mass spectrometry, to quantitatively track nanoplastic uptake and distribution in zebrafish at the single-particle level. This method enabled real-time, size-resolved tracking of nanoplastics accumulating in different fish organs over time.
Uptake and Accumulation of Polystyrene Microplastics in Zebrafish (Danio rerio) and Toxic Effects in Liver
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Researchers exposed zebrafish to polystyrene microplastics of two different sizes and tracked where the particles accumulated in the body. They found that smaller particles (5 micrometers) built up in the gills, liver, and gut, while larger particles (20 micrometers) mainly stayed in the gills and gut. The microplastics caused liver inflammation, oxidative stress, and disrupted fat metabolism, suggesting that ingested microplastics can damage internal organs in fish.
Bioaccumulation of various nanoplastic particles in larval zebrafish (Danio rerio)
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Researchers exposed larval zebrafish (Danio rerio) to 40-60 nm and 100 nm polystyrene nanoplastic particles using standard fish embryo toxicity and general behavioral toxicity assays from 6-120 hours post-fertilization, combining toxicity endpoints with fluorescence microscopy to confirm particle uptake and excretion. The study demonstrated nanoplastic accumulation within zebrafish larvae at tested concentrations, providing mechanistic insights into aquatic organism exposure dynamics for nanoplastics.
Study of the effects of nanoplastics ingestion in a freshwater fish ( Danio rerio )
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Researchers exposed zebrafish to polystyrene nanoplastics and found evidence of intestinal damage, oxidative stress, and behavioral changes. The study adds to growing evidence that nanoplastics in freshwater environments can harm fish health, with potential implications for the health of ecosystems and fish-eating humans.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.